I just called them and they will sell me a reconditioned 10# aluminum for $90 filled. $20 for refills while you wait. Is this a good deal? Roberts wanted $157 for a steel tank and $22 for swapped refills. If I could find a used tank I would use Roberts as they are more convenient but it looks like I'll need to buy one so refills while I wait is the way to go. Anyone have any suggestions?